<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="root"></div>
    <script src="../vue3基础源码/vue3.js"></script>
    <script>
        const app = Vue.createApp({
            template:`<div>{{copynumList[0]}}-----{{copynumList[1]}}----{{copynumList[2]}}</div>`,
            setup(props,context){
                const {reactive,readonly} = Vue;

                const numList = reactive([1,2,3]);
                const copynumList = readonly(numList);

                setTimeout(()=>{
                    numList[0] = 5;
                    // copynumList[0] = 10;
                },2000);

                return {numList,copynumList};
            }
        });


        const vm = app.mount("#root");
    </script>
</body>
</html>